Improvement in preserve-cans



KNOEPKE & STILZ.

Preserve Can.

y No. 57,212. Patented `Aug. 14, 1865.Y

if" 1 Q im) w e U Re N UNITED STATES PATENT OFFICE.

CHARLES F. STILZ AND 'JOHANN C. KNOEPKE, OF PHILADELPHIA, PA.

IMPROVEMENT lN PRESERVE-CANS.

Specification forming part of Letters Patent N0. 57,212, dated August 14, 1866.

To all whom it may concern:

Be it known that we, JOHANN G. KNOEPKE and CHARLES F. STILZ, of the city and county of Philadelphia and State of Pennsylvania, have invented a new and Improved Preserve- Gan; and we hereby declare the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.

The nature of our invention consists in making a preserve-can of tin, with a conical neck formed in the can, which can be easily closed by a cast-iron stopper with a gum ring around it, thussaving the trouble of soldering down the lid of tin, which is the usual plan.

To enable others skilled in the art to make and use our invention, we will proceed to describe its construction and operation.

Fig. 1 is a section through the can. Fig.2 is a plan of the top. Figs. 3 and et are details, in elevation.

Similar letters in each refer to the same parts.

A is the body of the can; B, the top of the can, having a dan ged opening or neck, d, large enough to admit the fruit. The top B is struck into shape by a die, and the flanges d are about one-fourth to three-eighths of an inch high, and tapering outward so as to make a hole larger on the outside than on the inside. Into this hole fits a cast-iron stopper, E, having around its lower ring, f, a band of india-ruhber, G, commonly called gumf A iiange, h, projects over the neck, so that the hand may secure a good hold in pulling ont the stopper. To cach side of the can is soldered lan ear, K K'. The car K has a round hole drilled in it,

into which one end of the spring-har M tits. The other end lits into the ear K', which is shaped like a hook. (See Fig. 3.)

In place of the spring-bar M, We sometimes use a crossbar, N, (see Fig. 2,) the ends of which are put through loops o, soldered to each side of the can. In the center of this bar N is a thumb-scremp. (See Fig. 4.) By turning this any pressure required may be put upon the stopper E, so as to lforce the gum Gr into airtight contact with the flange d.

To seal the can air-tight, all that is necessary is to press the stopper E into the conical neck d, pnt one end of the spring-bar M into the ear K, and spring the other end into the hook K. This forces down the stopper and secures it air-tight. We generally use this plan, as it cornes cheaper and the can is sealed more quickly than with the arrangement shown in Fig. 2. What we claim as our invention, and desire to secure by Letters Patent, is-

1. The combination ot' the tin can A, the conical-anged neck d, the cast-iron stopper E, gum ring Gr, ears K K', and spring-har M, when arranged and operating substantially as described.

2. The combination of the tin can A, the conical-flanged neck d, the cast-iron stopper E, gum ring G, loops o o, crossbar N, and thumb-screw p, when arranged and operating substantially as described.

JOHANN CHRISTIAN KNOEPKE. CHARLES F. STLLZ.

Witnesses:

EDWARD BROWN, W. W. DOUGHERTY. 

